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authorIngo Molnar <mingo@kernel.org>2024-04-03 09:13:09 +0200
committerIngo Molnar <mingo@kernel.org>2024-04-03 09:13:09 +0200
commit9b4e528557944dff694c8afa5a8912de81503bf2 (patch)
tree7d4ff38fbf55e1d32e3384cac0ae2fc80d4ae179 /include/linux/compiler.h
parentdfbc411e0a5ea72fdd563b2c7d627e9d993d865c (diff)
parent39cd87c4eb2b893354f3b850f916353f2658ae6f (diff)
Merge tag 'v6.9-rc2' into perf/core, to pick up dependent commits
Pick up fixes that followup patches are going to depend on. Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/compiler.h')
-rw-r--r--include/linux/compiler.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 52730e423681..c00cc6c0878a 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -116,6 +116,14 @@ void ftrace_likely_update(struct ftrace_likely_data *f, int val,
*/
#define __stringify_label(n) #n
+#define __annotate_reachable(c) ({ \
+ asm volatile(__stringify_label(c) ":\n\t" \
+ ".pushsection .discard.reachable\n\t" \
+ ".long " __stringify_label(c) "b - .\n\t" \
+ ".popsection\n\t"); \
+})
+#define annotate_reachable() __annotate_reachable(__COUNTER__)
+
#define __annotate_unreachable(c) ({ \
asm volatile(__stringify_label(c) ":\n\t" \
".pushsection .discard.unreachable\n\t" \
@@ -128,6 +136,7 @@ void ftrace_likely_update(struct ftrace_likely_data *f, int val,
#define __annotate_jump_table __section(".rodata..c_jump_table")
#else /* !CONFIG_OBJTOOL */
+#define annotate_reachable()
#define annotate_unreachable()
#define __annotate_jump_table
#endif /* CONFIG_OBJTOOL */